package cn.fighter3.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import cn.fighter3.filter.JwtAuthenticationTokenFilter;

/**
 * @Author 三更 B站： https://space.bilibili.com/663528522
 */
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Autowired
    JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            // 关闭csrf
            .csrf().disable()
            // 不通过Session获取SecurityContext
            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and().authorizeRequests()
            // 对于登录接口 允许匿名访问
            .antMatchers("/user/login").anonymous()
            .antMatchers("/doc.html", "/webjars/**", "/img.icons/**", "/swagger-resources/**", "/**", "/v2/api-docs")
            .permitAll()
            // 除上面外的所有请求全部需要鉴权认证
            .anyRequest().authenticated();

        // 把token校验过滤器添加到过滤器链中
        http.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
    }

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
}